Heat-shrinkable tube (GRC) Medium to Large Diameter Tubes
GF TUBE®
GF Tube is a trademark or registered trademark of Gunze Limited.
- fluororesin PFA・FEP Heat-shrinkable tube
- GRC
Fluororesin heat-shrinkable tube developed for roll cover applications.
The roll’s surface is covered by heating and shrinking the GRC to protect the roll and give it the excellent properties of fluoropolymers.
The cornerstone of Gunze fluororesin tubes. Our 40-year history began with GRC.
GF Tube is a trademark or registered trademark of Gunze Limited.
Product videos
Features
Heat resistant 
Water repellent, non-adhesive 
Chemical resistant
Uses
- Office equipment
- Copiers, printers, etc.
- Paper manufacturing and paper processing
- Paper machines, adhesive tape manufacturing machines, etc.
- Film and sheet processing machines
- Laminators, magnetic tapes, etc.
- Textile and dyeing related
- Dyeing machines, resin processing machines, etc.
- Printing machines
- High-speed offset presses, business form printing, etc.
- Insulation protection
- Binding of various types of cable wiring, etc.
- Industrial machinery
- Printed circuit boards, semiconductors, liquid crystal related, etc.
Standard specifications
You can choose from a selection of standard specifications. For standard products, the MOQ (minimum order quantity) is one piece.
Contact our sales office for non-standard products.
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• Inform us of the exact diameter and face length of the subject roll when you inquire or place an order.
• For cutting length, we will cut and sell at a pitch of 100 mm for 400 mm or more. Please order from one piece.
• Be sure to store in a cool, dark place (30°C or below). There is a possibility of spontaneous shrinkage.
• P is made of PFA and F is made of FEP.
• The inner diameter after shrinkage is the measured value after heating at 200°C for 10 minutes and is not a guaranteed value.
• Note: Custom-ordered long sizes will leave cast marks from the casting process. Although heat shrinkage will eliminate the cast marks, customers are required to test and verify the product for applications requiring surface accuracy before deciding whether it can be used.
Contact us for the applicable size.
Thick-walled and long products are also available.
GF TUBE®
GF Tube is a trademark or registered trademark of Gunze Limited.
- GRC-PB
Diameter of object to be covered Diameter of object to be covered： 17 to 300 mm
This type has conductivity and anti-static properties without compromising the cast-releasing properties of fluororesin PFA.
GF Tube is a trademark or registered trademark of Gunze Limited.
Product videos
Features
Anti-static Water repellent, non-adhesive Chemical resistant
Uses
- Office equipment
- Copiers, printers, etc.
- Paper manufacturing and paper processing
- Paper machines, adhesive tape manufacturing machines, etc.
- Film and sheet processing machines
- Laminators, magnetic tapes, etc.
- Textile and dyeing related
- Dyeing machines, resin processing machines, etc.
- Printing machines
- High-speed offset presses, business form printing, etc.
- Insulation protection
- Binding of various types of cable wiring, etc.
- Industrial machinery
- Printed circuit boards, semiconductors, liquid crystal related, etc.
Standard specifications
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• Inform us of the exact diameter and length of the target roll when you contact us or place an order. We will select the most suitable tube.
• Consult with us about other standards than those listed above.
• This product has been treated to make it less likely to generate static electricity, but it does not eliminate the generation of static electricity. (Surface resistance 10^8 or less)
• Be sure to store in a cool, dark place (30°C or below). There is a possibility of spontaneous shrinkage.
• The inner diameter after shrinkage is measured after heating at 200°C for 10 minutes and is not a guaranteed value.
• For cutting length, we will cut and sell at a pitch of 100 mm for 400 mm or more. Please order from one piece.
Contact us for the applicable size.
Thick-walled and long products are also available.